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Intercooler Gains

Anz32GTR

By Anz32GTR,
in Engines & Forced Induction

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nomnomv8 Rising Star

nomnomv8

Posted
Posted

you guys making over 300+kws with standard oil pumps or are they aftermarket?also ARC are the best flow on the market.

I dare say most of the motors making that power are unopened and have never come out hence running standard oil pumps

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sydking Veteran

sydking

Posted
Posted

In the new PI magazine, the r32 gtr "gmaster" made 360kw with stock r32 cooler, then changed to an r34 cooler and made 380kw, then again changed to a cooling pro 76mm core and made 411kw....

All runs done on JEMs Dyno...

51 KW gain for changing an intercooler- Id like to see the graphs. Also would like to know if the gtr cooler was in good nick.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

As for the XR6 cooler debate its really not a fair comparisson putting a 4L I6 next to a 2.6L I6.

The Barra can push out 320rwkw out of 12psi with not too much difficulty. Compare that to the conventional 18 - 20psi to get the same power level out of your typical twin setup RB (purely going by the results I have seen in the RB26 Dyno thread in the past).

A RB30 will need 17psi for the same power as a RB26 will @ 20psi (for example) - it's still the same amount of air, there is just less restriction (boost). It's as much about the volume & cooling that volume as it is about the pressure. Both need to be taken into account....

And it's totally fair, it's and intercooler. If it's tested to flow fine @ 25psi+ and does the job - then size is irrelevant, this is why i was going to use one :thumbsup:

sorry was this on BP pump or E85 / Water meth??

BP Ultimate ususally

you guys making over 300+kws with standard oil pumps or are they aftermarket?also ARC are the best flow on the market.

N1 here (3 times). But thats a whole different debate, search and start reading for that

GTSBoy Grand Master

GTSBoy

Posted
Posted

The core Nizpro use for their XR6 upgrades flows enough for 400-450rwkw and these cars are well proven. From memory it's roughly:

400mmL x 300mmH x 76mmD

Now look at a Greddy replacement size:

600mmL x 284mmH x 76mmD

If Nizpro cores that are pretty much the same size as a GTR core (GTR is actually larger)... and they flow easily 400rwkw... I don't see why it's so hard to believe a GTR one, or sized replacement, can't?

The Greddy GTR core is smaller (in internal flow area) but has longer tubes. Ergo, it will have a higher pressure drop. So I would say that raw cooling ability aside, the GTR core should be flow limited to a lower power ceiling than the Nizpro XR6 core.

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